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RhinoObjectSelect Method (Boolean)

Selects an object.

Namespace:  Rhino.DocObjects
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 5.0
public int Select(
	bool on


Type: SystemBoolean
The new selection state; true activates selection.

Return Value

Type: Int32

0: object is not selected.

1: object is selected.

2: object is selected persistently.

Objects that are locked, hidden, or on locked or hidden layers cannot be selected. If IsSelectableWithGripsOn() returns false, then an that object is not selectable if it has grips turned on.
partial class Examples
  public static Rhino.Commands.Result OrientOnSrf(Rhino.RhinoDoc doc)
    // Select objects to orient
    Rhino.Input.Custom.GetObject go = new Rhino.Input.Custom.GetObject();
    go.SetCommandPrompt("Select objects to orient");
    go.SubObjectSelect = false;
    go.GroupSelect = true;
    go.GetMultiple(1, 0);
    if (go.CommandResult() != Rhino.Commands.Result.Success)
      return go.CommandResult();

    // Point to orient from
    Rhino.Input.Custom.GetPoint gp = new Rhino.Input.Custom.GetPoint();
    gp.SetCommandPrompt("Point to orient from");
    if (gp.CommandResult() != Rhino.Commands.Result.Success)
      return gp.CommandResult();

    // Define source plane
    Rhino.Display.RhinoView view = gp.View();
    if (view == null)
      view = doc.Views.ActiveView;
      if (view == null)
        return Rhino.Commands.Result.Failure;
    Rhino.Geometry.Plane source_plane = view.ActiveViewport.ConstructionPlane();
    source_plane.Origin = gp.Point();

    // Surface to orient on
    Rhino.Input.Custom.GetObject gs = new Rhino.Input.Custom.GetObject();
    gs.SetCommandPrompt("Surface to orient on");
    gs.GeometryFilter = Rhino.DocObjects.ObjectType.Surface;
    gs.SubObjectSelect = true;
    gs.DeselectAllBeforePostSelect = false;
    gs.OneByOnePostSelect = true;
    if (gs.CommandResult() != Rhino.Commands.Result.Success)
      return gs.CommandResult();

    Rhino.DocObjects.ObjRef objref = gs.Object(0);
    // get selected surface object
    Rhino.DocObjects.RhinoObject obj = objref.Object();
    if (obj == null)
      return Rhino.Commands.Result.Failure;
    // get selected surface (face)
    Rhino.Geometry.Surface surface = objref.Surface();
    if (surface == null)
      return Rhino.Commands.Result.Failure;
    // Unselect surface

    // Point on surface to orient to
    gp.SetCommandPrompt("Point on surface to orient to");
    gp.Constrain(surface, false);
    if (gp.CommandResult() != Rhino.Commands.Result.Success)
      return gp.CommandResult();

    // Do transformation
    Rhino.Commands.Result rc = Rhino.Commands.Result.Failure;
    double u, v;
    if (surface.ClosestPoint(gp.Point(), out u, out v))
      Rhino.Geometry.Plane target_plane;
      if (surface.FrameAt(u, v, out target_plane))
        // Build transformation
        Rhino.Geometry.Transform xform = Rhino.Geometry.Transform.PlaneToPlane(source_plane, target_plane);

        // Do the transformation. In this example, we will copy the original objects
        const bool delete_original = false;
        for (int i = 0; i < go.ObjectCount; i++)
          doc.Objects.Transform(go.Object(i), xform, delete_original);

        rc = Rhino.Commands.Result.Success;
    return rc;
import Rhino
import scriptcontext
import System.Guid

def OrientOnSrf():
    # Select objects to orient
    go = Rhino.Input.Custom.GetObject()
    go.SetCommandPrompt("Select objects to orient")
    go.SubObjectSelect = False
    go.GroupSelect = True
    go.GetMultiple(1, 0)
    if go.CommandResult()!=Rhino.Commands.Result.Success:
        return go.CommandResult()

    # Point to orient from
    gp = Rhino.Input.Custom.GetPoint()
    gp.SetCommandPrompt("Point to orient from")
    if gp.CommandResult()!=Rhino.Commands.Result.Success:
        return gp.CommandResult()

    # Define source plane
    view = gp.View()
    if not view:
        view = doc.Views.ActiveView
        if not view: return Rhino.Commands.Result.Failure

    source_plane = view.ActiveViewport.ConstructionPlane()
    source_plane.Origin = gp.Point()

    # Surface to orient on
    gs = Rhino.Input.Custom.GetObject()
    gs.SetCommandPrompt("Surface to orient on")
    gs.GeometryFilter = Rhino.DocObjects.ObjectType.Surface
    gs.SubObjectSelect = True
    gs.DeselectAllBeforePostSelect = False
    gs.OneByOnePostSelect = True
    if gs.CommandResult()!=Rhino.Commands.Result.Success:
        return gs.CommandResult()

    objref = gs.Object(0)
    # get selected surface object
    obj = objref.Object()
    if not obj: return Rhino.Commands.Result.Failure
    # get selected surface (face)
    surface = objref.Surface()
    if not surface: return Rhino.Commands.Result.Failure
    # Unselect surface

    # Point on surface to orient to
    gp.SetCommandPrompt("Point on surface to orient to")
    gp.Constrain(surface, False)
    if gp.CommandResult()!=Rhino.Commands.Result.Success:
        return gp.CommandResult()

    # Do transformation
    rc = Rhino.Commands.Result.Failure
    getrc, u, v = surface.ClosestPoint(gp.Point())
    if getrc:
        getrc, target_plane = surface.FrameAt(u,v)
        if getrc:
            # Build transformation
            xform = Rhino.Geometry.Transform.PlaneToPlane(source_plane, target_plane)
            # Do the transformation. In this example, we will copy the original objects
            delete_original = False
            for i in range(go.ObjectCount):
                rhobj = go.Object(i)
                scriptcontext.doc.Objects.Transform(rhobj, xform, delete_original)
            rc = Rhino.Commands.Result.Success
    return rc

if __name__=="__main__":
See Also